HARRISBURG, Pa. (CBS) -- Pennsylvania Sen. John Fetterman remains in the hospital to receive treatment for clinical depression but is staying up to date on Senate business, his communications director Joe Calvello said in a statement Monday. Fetterman checked himself into Walter Reed National Military Medical Center on Feb. 15 to receive treatment. "John is doing well, working with the wonderful doctors, and remains on a path to recovery," Calvello said. "He is visiting with staff and family daily, and his staff are keeping him updated on Senate business and news. Our team is moving full speed ahead and working...